Chess South Africa
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Chess South Africa
Koert, I (Isaac)
Dob:
2006/01/01 (U20)
Gender:
Male
Chess SA id:
1060132969
FIDE id:
Region:
Cape Town (WCT)
Citizen:
RSA
Title(s):
Last active:
2024/07/27 (104 days ago)
Ratings
The
Projected values
below are
NOT
the actual and official values as calculated by the Ratings Bureau.
Main
Standard
Rapid
Blitz
Raw rating
=Current rating,
Weighted rating (WR)
=Weighted average of current/new Raw rating + last 23 published Raw ratings),
Weighted performance (WP)
=Weighted average of last 5 tournaments
Current Raw rating
1362.9
Current Weighted rating
1314.2
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1362.9
Current highest rating achieved
1362.9
Current floor (min rating allowed)
862.9
Current K-factor
36
Games played this month
0
Score (S)
0.0
Expected score (We)
0.00
Difference (S-We)
0.00
Current Raw change (no limits, including tournament time weight)
0.0
Current min/max change allowed (with limits)
±131.5
Current Raw change used (final)
0.0
Projected new Raw rating
1362.9
Projected new Weighed rating
1210.5
Projected new Weighted performance
1206.5
Projected new final Raw rating (if new WP > new Raw)
1362.9
Projected new highest rating
1362.9
Projected new floor
862.9
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1362.9
Projected effective change (new Official - current Official)
=0.0
Raw rating
=Current rating,
Weighted rating (WR)
=Weighted average of current/new Raw rating + last 23 published Raw ratings),
Weighted performance (WP)
=Weighted average of last 5 tournaments
Current Raw rating
1332.1
Current Weighted rating
1309.3
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1332.1
Current highest rating achieved
1332.1
Current floor (min rating allowed)
832.1
Current K-factor
36
Games played this month
0
Score (S)
0.0
Expected score (We)
0.00
Difference (S-We)
0.00
Current Raw change (no limits, including tournament time weight)
0.0
Current min/max change allowed (with limits)
±137.4
Current Raw change used (final)
0.0
Projected new Raw rating
1332.1
Projected new Weighed rating
1205.6
Projected new Weighted performance
640.3
Projected new final Raw rating (if new WP > new Raw)
1332.1
Projected new highest rating
1332.1
Projected new floor
832.1
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1332.1
Projected effective change (new Official - current Official)
=0.0
Raw rating
=Current rating,
Weighted rating (WR)
=Weighted average of current/new Raw rating + last 23 published Raw ratings),
Weighted performance (WP)
=Weighted average of last 5 tournaments
Current Raw rating
1306.1
Current Weighted rating
1251.9
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1306.1
Current highest rating achieved
1306.1
Current floor (min rating allowed)
806.1
Current K-factor
36
s
Games played this month
0
Score (S)
0.0
Expected score (We)
0.00
Difference (S-We)
0.00
Current Raw change (no limits, including tournament time weight)
0.0
Current min/max change allowed (with limits)
±142.6
Current Raw change used (final)
0.0
Projected new Raw rating
1306.1
Projected new Weighed rating
1153.2
Projected new Weighted performance
863.0
Projected new final Raw rating (if new WP > new Raw)
1306.1
Projected new highest rating
1306.1
Projected new floor
806.1
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1306.1
Projected effective change (new Official - current Official)
=0.0
Raw rating
=Current rating,
Weighted rating (WR)
=Weighted average of current/new Raw rating + last 23 published Raw ratings),
Weighted performance (WP)
=Weighted average of last 5 tournaments
Current Raw rating
1200.0
Current Weighted rating
1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current highest rating achieved
1200.0
Current floor (min rating allowed)
700.0
Current K-factor
36
Games played this month
0
Score (S)
0.0
Expected score (We)
0.00
Difference (S-We)
0.00
Current Raw change (no limits, including tournament time weight)
0.0
Current min/max change allowed (with limits)
±165.8
Current Raw change used (final)
0.0
Projected new Raw rating
1200.0
Projected new Weighed rating
1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
1200.0
Projected new floor
700.0
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1200.0
Projected effective change (new Official - current Official)
=0.0
Tournaments
History
Did not participate this month.
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
2
CT District North Top Schools 2024 (U18 Mixed)
2024/07/27
2024/07/27
Cape Town (WCT)
Rapid
30
0.60
5
4
4.0
1324.7
1238.8
Analysis
1
North District School Trials 2024 (U18 Boys)
2024/02/03
2024/02/03
Cape Town (WCT)
Standard
60
0.83
5
5
3.5
1274.8
1275.2
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
4
CT District North Top Schools 2024 (U18 Mixed)
2024/07/27
2024/07/27
Cape Town (WCT)
Rapid
30
0.60
5
4
4.0
1324.7
1238.8
Analysis
3
North District School Trials 2024 (U18 Boys)
2024/02/03
2024/02/03
Cape Town (WCT)
Standard
60
0.83
5
5
3.5
1274.8
1275.2
Analysis
2
Chess@libraries 2023
2023/10/05
2023/10/05
Cape Town (WCT)
Rapid
15
0.39
6
6
4.0
1263.7
1200.0
Analysis
1
2020 Western Province Open (Development)
2020/03/07
2020/03/07
Cape Town (WCT)
Standard
60
0.83
5
5
4.5
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
9
7
1
1
7.5
83.3
283.3
1342.3
1625.7
White
5
4
0
1
4.0
80.0
255.0
1344.8
1599.8
Black
4
3
1
0
3.5
87.5
318.8
1339.2
1658.0
Standard
All
5
3
1
1
3.5
70.0
170.0
1395.8
1565.8
White
3
2
0
1
2.0
66.7
141.7
1433.6
1575.3
Black
2
1
1
0
1.5
75.0
212.5
1339.2
1551.7
Rapid
All
4
4
0
0
4.0
100.0
425.0
1275.4
1700.4
White
2
2
0
0
2.0
100.0
425.0
1211.7
1636.7
Black
2
2
0
0
2.0
100.0
425.0
1339.2
1764.2
Blitz
All
0
0
0
0
0.0
0.0
0.0
0.0
0.0
White
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Black
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
20
15
2
3
16.0
80.0
255.0
1268.7
1523.7
White
10
6
1
3
6.5
65.0
127.5
1298.6
1426.1
Black
10
9
1
0
9.5
95.0
382.5
1238.7
1621.2
Standard
All
10
7
2
1
8.0
80.0
255.0
1287.3
1542.3
White
5
3
1
1
3.5
70.0
170.0
1352.8
1522.8
Black
5
4
1
0
4.5
90.0
340.0
1221.8
1561.8
Rapid
All
10
8
0
2
8.0
80.0
255.0
1250.0
1505.0
White
5
3
0
2
3.0
60.0
85.0
1244.4
1329.4
Black
5
5
0
0
5.0
100.0
425.0
1255.7
1680.7
Blitz
All
0
0
0
0
0.0
0.0
0.0
0.0
0.0
White
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Black
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
1100109823
Calitz, J (Joey)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
2
108095313
Somai, R (Ruhan)
1
1.0
1
0
0
100.0
1274.8
425.0
1699.8
View list
3
108061379
Solomon, D (Daniel)
1
1.0
1
0
0
100.0
1274.8
425.0
1699.8
View list
4
1130162742
Wilson, L (Leighton)
1
1.0
1
0
0
100.0
1263.7
425.0
1688.7
View list
5
1070138709
Williams, R (Reinaert)
1
1.0
1
0
0
100.0
1324.7
425.0
1749.7
View list
6
1080190263
Watson, C (Cole)
1
1.0
1
0
0
100.0
1324.7
425.0
1749.7
View list
7
1080131003
Isaacs, Z (Zeiyaad)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
8
1070162715
Hendricks, Y (Yusuf)
1
1.0
1
0
0
100.0
1263.7
425.0
1688.7
View list
9
1090162713
Hay, L (Luqmaan)
1
1.0
1
0
0
100.0
1263.7
425.0
1688.7
View list
10
1070150556
Simayile, I (Isiphilinkosi)
1
1.0
1
0
0
100.0
1274.8
425.0
1699.8
View list
11
1070131795
September, J (Jordan)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
12
1070108007
Muyaya, M (Merlin)
1
1.0
1
0
0
100.0
1324.7
425.0
1749.7
View list
13
1100162731
Mthlnianu, O (Onga)
1
1.0
1
0
0
100.0
1263.7
425.0
1688.7
View list
14
1060190245
Mdunyelwa, L (Litha)
1
1.0
1
0
0
100.0
1324.7
425.0
1749.7
View list
15
1090117960
Matthee, M (Matthew)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
16
103054508
Kim, T (Tae Heon)
1
0.5
0
1
0
50.0
1200.0
0.0
1200.0
View list
17
108092101
Dicks, D (Drake)
1
0.5
0
1
0
50.0
1274.8
0.0
1274.8
View list
18
107061440
Van Staaden, D (Darren)
1
0.0
0
0
1
0.0
1274.8
-425.0
849.8
View list
19
1950162737
Sinalo, M (Mudau)
1
0.0
0
0
1
0.0
1263.7
-425.0
838.7
View list
20
100086060
Adams, K (Keenan)
1
0.0
0
0
1
0.0
1263.7
-425.0
838.7
View list